Submitted by György Chityil ... on Fri, 01/19/2018 - 16:45 Hierarchy: NounDescription: {{organic compound}} The IUPAC name for methacrylic acid.Ngram: 2-methyl-2-propenoic acidNgram Text: 2-methyl-2-propenoic acidSource: WiktionaryIssue: 0Wiktionary tag: organic compoundNgram Count: 2